Choose Spaceman Defender
Choose Spaceman Defender if it matches what drew you to this matchup. Spaceman Defender launched in 2019.
Spaceman Defender vs Martian Invaders
Spaceman Defender and Martian Invaders both land in Action, Indie on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Action, Indie on Steam. Spaceman Defender (2019) is 3 years older than Martian Invaders (2022). Martian Invaders is currently ~50% cheaper on Steam than Spaceman Defender (0.99 USD vs. 1.99 USD). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose Martian Invaders
Choose Martian Invaders if it's currently about 50% cheaper on the Steam Store. Martian Invaders launched in 2022.
Both Spaceman Defender and Martian Invaders sit in Action and Indie on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 Spaceman Defender |  Martian Invaders | |
|---|---|---|
| Released | 2019 | 2022 |
| Genres | Action, Indie | Action, Indie |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux |
| Steam Deck | Unrated | Unrated |
| Price | 1.99 USD | 0.99 USD |
| Steam reviews | 1 reviews | 1 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | LoadUpGames.com | LoadUpGames.com |
Side by side
- Both share Action, Indie on Steam.
- Spaceman Defender (2019) is 3 years older than Martian Invaders (2022).
- Martian Invaders is currently ~50% cheaper on Steam than Spaceman Defender (0.99 USD vs. 1.99 USD).
Spaceman Defender vs Martian Invaders — FAQ
- Should I play Spaceman Defender or Martian Invaders first?
- If you want chronology, Spaceman Defender (2019) came out before Martian Invaders (2022). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Spaceman Defender and Martian Invaders similar?
- They overlap on Action, Indie on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.